Ammonium Purpurate AR

  • CAS :
    3051-09-0
  • REF :
    24374
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QUANTITY PRICE ENQUIRY
5 gm Rs 540.00
25 gm Rs 1930.00
100 gm Rs 6900.00

Product Information

  • Formula: C₈H₈N₆O₆
  • CAS: 569-58-4
  • EC No.: 209-304-3
  • M (Molar Mass): 284.19 g/mol
  • D (Density): Not applicable
  • mp (Melting Point): Decomposes without melting
  • bp (Boiling Point): Not applicable
  • Optical Rotation: Not applicable

Chemicals Properties

  • Assay (as dry substance): ≥ 98.0 %
  • Appearance: Dark reddish-brown to bronze powder or crystals.
  • Solubility: Soluble in water giving a purple solution; soluble in dilute alkalies.
  • Identification (Spectrophotometry): Aqueous solution shows characteristic absorption maxima at ~520 nm and ~540 nm (pH dependent).
  • pH of Saturated Solution: ~9.
  • Loss on Drying (at 105°C): ≤ 1.0 %
  • Residue on Ignition: ≤ 0.5 %
  • Chloride (Cl): ≤ 0.05 %
  • Sulfate (SO₄): ≤ 0.05 %
  • Heavy Metals (as Pb): ≤ 20 ppm
  • Iron (Fe): ≤ 50 ppm
  • Suitability as Calcium Indicator: Passes test (clear color change from pink to violet with Ca²⁺ at pH >12).

Hazard Information

  • Hazard: May be harmful if swallowed. Causes eye irritation. May cause respiratory irritation.
  • Safety: For laboratory use only. Avoid inhalation of dust. Wear protective gloves/eye protection.
  • Storage: Store in a cool, dry place in a tightly closed, light-resistant container. Protect from moisture and strong acids.